Slitting and winding apparatus



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SLITTING AND WINDING APPARATUS Filed Oct. 21, 1948 19 Sheets-Sheet 4 1952 'r. M. SCRUGGS ETAL SLITTING AND WINDING APPARATUS l9 Sheets-Sheet 5 Filed Oct. 21, 1948 Dec. 16, 1952 s Ru s ETAL 2,621,736

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Dec. 16, 1952 T. M. SCRUGGS ETAL 2,621,736

SLITTING AND WINDING APPARATUS Filed Oct. 21, 1948 19 Sheets-Sheet 13 FIG.I7.

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Iii'l" 1386- 1952 "r. M. SCRUGGS ETAL SLITTING AND WINDING APPARATUS l9 sheets sheet 15 FiledOct. 21, 1948 1366- 1952 'r. M. SCRUGGS ETAL SLITTING AND WINDING APPARATUS 19 She ets-Sheet 16 Filed Oct. 21, 1948 Q E 3 mm OE Q 2 @m a m a 4? m. 2 4/N A MN OE 3% e 1952 T. M. SCRUGGS El'AL SLITTING AND WINDING APPARATUS FiledOct. 21, 1948 19 Sheets-Sheet l8 FIGS-32A. min! 2 2 age 220 486 Patented Dec. 16, 1952 SLITTING AND WINDING APPARATUS Thomas M. Scruggs, Richmond Heights, and Earl K. Hall, Lemay, Mo., assignors 'to Bemis Bro. Bag Company, St. Louis, Mo., a corporation of Missouri Application October 21, 1948, Serial No. 55,804

29 Claims.

This invention relates to slitting and winding apparatus, and more particularly to such apparatus for slitting a web of paper into narrow strips and winding the strips into rolls.

Among the several objects of the invention may be noted the provision of an improved, highspeed slitting and winding apparatus for slitting a web of paper into narrow strips and winding the strips into tight, disc-like rolls, without requiring the strips to be laterally spaced from one another, so as to keep the over-all dimensions of the apparatus at a minimum; the provision of apparatus of the class described adapted to wind the strips side-by-side on an arbor without any.

lapping or sticking together of adjacent rolls of strip so that the rolls may be readily separated; the provision of apparatus of this class embodying a shearing type of slitter embodying means for movingits shearing cutters into and out of shearing relation without damage to the cutters; the provision of apparatus of this class embodying means for maintaining dimensional stability of the cutters to assure shearing alignment thereof; the provision of apparatus of this class adapted for quickly ejecting a completed group of strip rolls and starting the Winding of another group of strip rolls; the provision of apparatus of this class adapted for quickly positioning fresh supply rolls of web and threading the end of a fresh supply roll through the apparatus; and the provision of apparatus such as described adapted for operation upon webs of diiferent widths. Other objects will be in part apparent and in part pointed out hereinafter.

The invention accordingly comprises the elements and combinations of elements, features of construction, and arrangements of parts which will be exemplified in the structures hereinafter described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, in which one of various possible embodiments of the invention is illustrated:

Fig. l is a left-hand side elevation of the slitter and winder of this invention;

Fig. 2 is a right-hand side elevation;

Fig. 3 is an enlarged forward end elevation as viewed from the line 3-3 in Figs. 1 and 2, parts being broken away;

Fig. 4 is an enlarged horizontal section taken substantially on line 6-4 of Fig. 1 with parts broken away, also diagrammatically illustrating a heat-exchange fluid circulating system;

Fig. 5 is a fragmentary enlargement of Fig. 4 to show detail;

Fig. 6 is a fragmentary detail enlargement of Fig. 5;

Fig. 7 is a vertical section taken on line 1-1 of Fig. 4;

Fig. 8is an enlarged detail section taken on line 88 of Fig. 1;

Fig. 9 is an enlarged detail section taken on line 99 of Fig. 1;

Fig. 10 is an enlarged detail section taken on line Ill-4i] of Fig. 2;

Fig. 11 is a vertical longitudinal section taken on line I l--ll of Fig. 3 illustrating parts in position at the start of winding;

Fig. 12 is a section similar to Fig. 11 illustrating parts in position at the completion of winding;

Fig. 13 is a section similar to Fig. 11 illustrating parts in position for ejection of a wound roll;

Fig. 14 is a fragmentary detail elevation illustrating a belt tightener mechanism;

Fig. 15 is a plan view of Fig. 14;

Fig. 16 is a rearward end elevation of the apparatus of this invention;

Fig. 17 is an enlarged rearward end elevation with parts broken away and shown in section;

Fig. 18 is an enlarged detail section taken on line [8-46 of Fig. 16 with parts broken away;

Fig. 19 is a view taken on line l9-I9 of Fig. 18;

Fig. 20 is a section taken on line Zil-ZB of Fig. 18;

Fig. 21 is a reduced section taken on line 2 l2l of Fig. 18;

Fig. 22 is a partial plan view of the apparatus as viewed from line 22-22 of Fig. 1, with parts broken away;

Fig. 23 is an enlarged section taken on line 2323 of Fig. 22;

Fig. 24 is an enlarged section taken on line 2424 of Fig. 22;

Fig. 25 is a section taken on line 25-25 of Fig.

Fig. 2371s an enlarged section taken on line 28-28 of Fig. 22;

Fig. 29 is an enlarged section taken on line Y ze 2s of Fig. 22;

Fig. 30 is a plan view of a bridge and. its operating mechanism, parts being broken away;

Fig. 31 is a view of an arbor and rolls of strip wound thereon, parts being broken away and shown in section;

Figs. 32 and 32A constitute a fluid pressure system diagram; and 

